Adjustable picture-frame.



H. ENGELMOHR. ADJUSTABLE PIGTURE FRAME.

APPLICATION IILED MAR. 23, 1910.

Patented July 4, 1911.

FFICE.

HERMANN' ENGELMOHR, OF BERLIN, GERMANY.

ADJUSTABLE PICTURE-FRAME.

Specification of Letters Patent.

Patented July 4, 191 1.

Application filed March 23, 1910. Serial No. 551,185.

To all whom it may concern:

Be it known that I, HERMANN ENGEL- MOHR, a subject of the Emperor of Germany, residing at Berlin, Germany, have invented certain new and useful Improvements in Adjustable Picture-Frames, of which the following is a specification.

My invention relates to adjustable picture frames.

An important object of the present inven tion is to provide an extensible picture frame, which is neat in appearance, easy to adjust to alter its size and cheap to manufacture.

Other objects and advantages will be apparent in the course of the following description.

In the accompanying drawings forming a part of this specification and in which like reference characters are employed todesignate like parts throughout the same; Figure 1 is a front elevation of the frame; Fig. 2 is a rear elevation of the frame with the blind frame indicated by dotted lines; and Fig. 3 is a cross-section taken on line AB of Fig. 1.

The frame comprises vertical and horizontal portions, each of which is formed of longitudinally relatively movable strips 6 and 6 The adjacent edges of these strips are tongued and grooved, as clearly illustrated in Fig. 3.

The free ends of the strips 6 and b are disposed within corner castings or sockets a, having portions a bent at right angles to the body portion of the same, which portions are provided with lips a and h. The strips 6 and b are disposed within the corner sockets a and are confined between the lips 64 and h, and the body portion of said sockets. One strip 5 of each pair has one end thereof rigidly secured to one of the corner sockets a, as shown at a while the opposite end of this strip is slidably mounted in an other corresponding socket a. The end of the other strip 6 of said pair is rigidly connected with the last named socket a, as shown at a*, while its opposite end adjacent the end of strip 6 having rigid engagement with the socket on as shown at a is slidably mounted in this socket. It is to be understood that the tongued and grooved engagements of the strips 1) and b are sufficient to prevent additional relative movement between said strips Z) and b Adapted to cooperate with the main frame, is a rectangular blind frame d, which is disposed upon the rear side of the main frame. This blind frame (Z carries the picture f and suitable glass 6. Each of the corner sockets has on each of its two sides a lip h as shown, and 011 one lip of each socket a spring rod 2' is pivoted, said spring rod being adapted to be swung under the other adjacent lip h, so that it is engaged and securely held thereby. This spring rod clamps the blind frame (Z against strips 6 and b for holding the frame in place.

I claim:

1. In an extensible picture frame, pairs of relatively longitudinally movable strips forming sides of the frame, each pair forming a side of the frame, corner sockets to hold the free ends of said pairs of strips, and one end of one strip in a pair being rigidly connected with one of the corner sockets and the corresponding end of the other strip in the same pair being slidably mounted in the last named socket.

2. In an extensible picture frame, a main frame comprising pairs of relatively longitudinally movable strips having tongued and grooved engagement with each other, corner sockets to hold the free ends of said pairs of strips, one end of one strip in a pair being rigidly coiinected with one of the corner sockets, the corresponding end of the other strip in the same pair being slidably mounted in the last named socket, a blind frame disposed upon the rear side of said main frame, and a spring rod secured to each socket to clamp said blind frame to the main frame.

In testimony, that I claim the foregoing as my invention, I have signed my name in the presence of two subscribing witnesses.

HERMANN ENGELMOHR.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

